| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Bending Efficiency of Bent Multiple-Slot Waveguides |
| Hamid Keivani1, Alireza Kargar2,1 |
| 1Department of Electrical and Electronic Engineering, Islamic Azad University, Kazerun Branch, Kazerun, Iran2Department of Electrical and Computer Engineering, Shiraz University, Shiraz 7134851156, Iran |
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| Cite this article: |
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Hamid Keivani, Alireza Kargar 2009 Chin. Phys. Lett. 26 124204 |
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Abstract The bending efficiency of three-dimensional bent multiple-slot waveguides is studied by applying a combined method of effective-index and modified transfer-matrix methods. The effects of asymmetric structure, asymmetric slots, and asymmetric middle strips on the bending efficiency are investigated. We show that the bending efficiency can be improved by the use of asymmetric structures and asymmetric middle strips. The bending efficiency of different slot waveguides (up to quintuple-slot structure) is compared. It is revealed that although the single-slot waveguide in general provides the lowest bending loss for the same waveguide parameters, it is possible that the multiple-slot waveguide can present a lower bending loss than the single-slot one.
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| Keywords:
42.82.-m
42.82.Et
42.60.Da
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Received: 10 August 2009
Published: 27 November 2009
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| PACS: |
42.82.-m
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(Integrated optics)
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42.82.Et
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(Waveguides, couplers, and arrays)
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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